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Finding the Fourth Proportional to 714,437.51, 985,754.04 and 404,344.05

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Solution

The fourth proportional to 714,437.51, 985,754.04 and 404,344.05 is: 557,898.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,437.51 : 985,754.04 = 404,344.05 : x
  2. Step 2: Convert to fraction form
    714,437.51/985,754.04 = 404,344.05/x
  3. Step 3: Cross multiply
    714,437.51x = 985,754.04 × 404,344.05
  4. Step 4: Simplify right side
    714,437.51x = 398,583,780,837.46
  5. Step 5: Solve for x
    x = 398,583,780,837.46/714,437.51
  6. Step 6: Final answer
    x = 557,898.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.